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Finding the Fourth Proportional to 445,170.28, 666,865.02 and 267,580.84

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Solution

The fourth proportional to 445,170.28, 666,865.02 and 267,580.84 is: 400,836.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    445,170.28 : 666,865.02 = 267,580.84 : x
  2. Step 2: Convert to fraction form
    445,170.28/666,865.02 = 267,580.84/x
  3. Step 3: Cross multiply
    445,170.28x = 666,865.02 × 267,580.84
  4. Step 4: Simplify right side
    445,170.28x = 178,440,302,218.22
  5. Step 5: Solve for x
    x = 178,440,302,218.22/445,170.28
  6. Step 6: Final answer
    x = 400,836.06

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.